Centretown Observatory:

Baro. Pressure + Rel. Humidity

Times in Eastern Daylight Time (EDT = GMT-4)

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   LIVE OBSERVATIONS at CTO Weather Centre - Monday, September 8, 2025 at 23:09 EDT
   TODAY:

   Monday

   Reading

   Time

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Current Barometric Pressure:

               

   Maximum Today:

22:39     2018      

   Minimum:

01:04           2021

   Mean:

  2018 2021
 

   Current Relative Humidity:

67 %   88 %                

   Maximum Today:

85 % 06:29 96 %     95 % 2017      

   Minimum:

41 % 16:24 45 %           40 % 2018

   Mean:

63 %   70 % 71 % 85 % 2012 54 % 2018
 

   YESTERDAY:

   Sunday

   Reading

   Time

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Maximum Barometric Pressure:

00:14   2018      

   Minimum:

04:14           2024

   Mean:

   mb 2018 2017
 

   Maximum Relative Humidity:

80 % 06:54 96 %     98 % 2024      

   Minimum:

37 % 15:29 41 %           37 % 2025

   Mean:

58 %   68 % 66 % 88 % 2024 58 % 2012
 

   TOMORROW:

   Tuesday

         

   Normal

   RecHi

   YY

   RecLo

   YY

   Barometric Pressure:

              2018 2021

   Daily Mean BP:

           mb 2018 2021
 

   Relative Humidity:

              92 % 2020 40 % 2023

   Daily Mean RH:

          64 % 86 % 2020 56 % 2013
 

   THIS MONTH:

   Sep Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Monthly Mean BP:

 mb 2018 2017
 

   Monthly Mean RH:

60 % 68 % % 74 % 2018 58 % 2023
 

   Daily Extremes + Records

   Max

   DD

   Min

   DD

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

01 04 2020-21 2022-25

   Daily Mean BP:

01 04 2020-20 2017-27
 

   Relative Humidity:

93 % 05 31 % 01 98 % 2024-07 0 % 2019-27

   Daily Mean RH:

68 % 04 55 % 03 89 % 2022-20 12 % 2016-27
 

   LAST MONTH:

   Aug Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Mean Barometric Pressure:

 mb 2025 2017
 

   Mean Relative Humidity:

59 % 68 % 62 % 73 % 2018 58 % 2013
 

   Daily Extremes + Records

   Max

   DD

   Min

   DD

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

05 25 2023-21 2021-10

   Daily Mean BP:

06 24 2025-06 2021-10
 

   Relative Humidity:

98 % 28 27 % 15 99 % 2024-09 20 % 2019-01

   Daily Mean RH:

79 % 29 46 % 18 94 % 2024-09 38 % 2019-01
 

   NEXT MONTH:

   October Monthly Records

     Normal

   RecHi

   YY

   RecLo

   YY

   Mean Barometric Pressure:

   mb 2017 2014
 

   Mean Relative Humidity:

  66 % 74 % 2021 56 % 2019
 

   October Daily Records

 

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

  2022-29 2022-06

   Daily Mean BP:

  2022-29 2022-06
 

   Relative Humidity:

  99 % 2019-19 0 % 2019-02

   Daily Mean RH:

  94 % 2016-21 33 % 2019-05
 

   THIS YEAR:

   2025 Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Annual Mean BP:

 mb 2013 2012
 

   Annual Mean RH:

65 % 71 % 61 % 70 % 2018 54 % 2013
 

   Monthly Extremes + Records

   Max

   MM

   Min

   MM

   RecHi

   YY-MM

   RecLo

   YY-MM

   Monthly Mean BP:

Aug Mar 2023-May 2018-Jul
 

   Monthly Mean RH:

73 % Jan 59 % Aug 83 % 2023-Jan 22 % 2017-Apr
 

   Daily Extremes + Records

   Max

   MM-DD

   Min

   MM-DD

   RecHi

   Date

   RecLo

   Date

   Barometric Pressure:

Feb-02 Mar-06 2023-05-26 2021-08-10

   Daily Mean BP:

Feb-02 Mar-06 2023-05-26 2021-08-10
 

   Relative Humidity:

99 % Mar-04 16 % May-11 100 % 2021-06-13 0 % 2019-06-16

   Daily Mean RH:

92 % Mar-05 38 % May-11 100 % 2022-12-31 1 % 2017-03-27
 

   LAST YEAR:

   2024 Means

   Mean

   Airport

   Normal

   Annual Mean BP:

 mb
 

   Annual Mean RH:

68 % 77 % 61 %

   Monthly Extremes

   Max

   MM

   Min

   MM

   Monthly Mean BP:

Dec Jun
 

   Monthly Mean RH:

79 % Jan 58 % Mar

   Daily Extremes

   Max

   MM-DD

   Min

   MM-DD

   Barometric Pressure:

Dec-14 Jan-10

   Daily Mean BP:

Dec-14 Jan-10
 

   Relative Humidity:

100 % Jan-11 6 % Oct-20

   Daily Mean RH:

100 % Jan-27 31 % Apr-10
This page was last regenerated 2025-09-08@23:10.
It is sheduled to be regenerated whenever there are new data; approximately every five minutes.
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